Dragonframe 4.2.2: YES
Dragonframe 3.7.3: YES
Dragon Stop Motion 2.3.8: YES
(Dragonframe was previously called Dragon Stop Motion)
The Nikon D3X provides a live view via its USB connection. The live view size is 640 x 426.
The Nikon live view does not have live view exposure simulation.
Dragonframe controls the Nikon D3X ISO, shutter speed, aperture (with digital lens), image quality, and size.